John sullivan



(No Model.) l

J. SULLIVAN.

WEDGE BOLT FOB. LO'GOMOTIVES.

Patented July 25, 1882.

Z052' f77@ SMS.

NrTED STATEsf PATENT Orrrcl JOHN SULLIVAN, OFF ELMIRA, NEW YORK,ASSIGNOR OF TWO-THIRDS TO LA MOTI AMES AND JOHN E. DOHONEY, BOTH OF SAMEPLAGE.

WEDGE-BOL'T FOR LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No. 261,570, dated Julyv25, 1882.

Application filed May 22, 1882. (No model.)

. To all whom it may concern:

- motives, in which the bolt passing through a washer and a threadedshell and havinga nut l at the bottom isrendered adjustable, so as tohold the wedge rigidly in its place.

The objects of myimprovements are, rst, to hold the adjustable wedgefirmly and rigidly inits positionand preventitsgettingstuckg77 second,to prevent any lost motion, wearor play between the wedge and the bolt;third, to secure a greater surface-bearing between the wedge and thebolt; and, fourth, to enable it to be readjusted, tightened, and setwithout removing it from its place. I attain these objects by themechanism illustrated in the accompanying drawings, in which- Figure l1s a front view vertical section of the entire bolt and its bearings;Fig. 2, a side view vertical section of the entire bolt and itsbearings, showing tapering wedge; Fig. 3, a perspective view of the boltwith the nut; and Fig. 4, a perspective view of the threaded shell,washer, and jam-nut.

. Similar letters refer to similar parts throu ghout the several views.

The bolt a consists of a rod having a head at the top which lits into aslot cut through the wedge, as shown in Fig. l. The rod passes throughthe washer c, thence down through the threaded shell b, and is cut atthe bottom with threads for the reception of the nut d, by which thehead of the bolt is drawn iirmly down to the lips of the wedgeff.

The shell bis threaded, as in the ordinary wedge-bolt, and passes upthrough the brace or binder g, and has a six-squared head at the bottomfor the wrench and a concave surface at the top to fit the ball-washerc, which washer is convex on its lower side, so as to adjust itself tothe concave surface of the shell,

and is straight on the upper side, or the side that meets the bottom ofthe wedge.

The jam-nut e-acts simply as a protection between the lower edge of thebinder and the head of the threaded shell.

In Fig. 2 the binder g, the driving-box c', and the pedestal-jaw h arepartly illustrated to show the relation of the bolt to the other partsof the machinery.

Heretofore wedge-bolts have been composed of only one piece, and byreason of the constant working of those parts which come in contact withthe wedge they soon become worn,`

the engine to be sent into the shops for repairs; and in case thatnothing was broken by reason of the looseness of the parts, still theengine had frequently to be sent in to have the bolt reiittedat'considerable trouble, labor, and expense; but by means of myinvention the engineer is enabled by a single turn of his wrench toadjust the wedge to any desired position and to tighten the bolt so asto hold the wedge rigidly in its position, thus preventing any lostmotion, wear, or play between the head of the bolt and the lips of thewedge; and in case it should become worn he can in an instant tightenthe head of the bolt to the Wedge far more securely than theold-fashioned bolt ever could be fitted, and it is equally true withregard to square or rounded boltheads.

I am aware that prior to my invention wedge-bolts for driving-boxes havebeen made washer, threaded shell, and nut at the bottom,

and used. tion of the Wedge-bolt; but

5 sire to secure by Letters Patent, is

oomotives, of the bolt a, the threaded shell b,

Therefore I do not claim the invenby which combination the bolt isrendered adjustable, so as to secure :t perfectly tight joint What I doclaim as my invention, and debetween the head of the bolt and the wedge,15

and to hold the Wedge rigidly in its place, sub- 1. The combination, ina Wedge-bolt for lostantially as set forth.

JOHN SULLIVAN.

and the nut d at the bottom, all as substantially set forth.

for locomotives, the combination of a bolt,

Witnesses:

H. A. CORELL,

2. In a driving-box adjustable Wedge-bolt J Aeon SCHWARTZ.

